Manufacture of partition and like building blocks



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UNITED STATES PATENT OFFICE Application filed September 26, 1925, Serial No. 58,7005, and in Germany October 9, 1929.

This invention relates to a novel form of register, somewhat after the manner in which partition or building block and to the method ships decks are laid. An examination of the of producing the same, the object being to joints shown in Figures 1-3 will explain what provide a .high quality of block capable of is meant by the term that no two edge joints 5 withstanding great loads and stresses and are in register. The ]0iI1tS forming the plane 55 at the same vtime being highly resistant to the surfaces of the boards may however be in weather, and a good heat insulator. vregister, as can be seen in Figures 1' and 3, It is known to form partition blocks or where aboard made up of five layers of vepanels by building up blocks of boards glued neers is illustrated. The board may be made together and cut from the block at rightup of any suitable number of superposed 've- 6o angles to the age rings, whereupon these user bricks or plates glued together, and 1t-s blocks are again out in a plane at right angles finished size may convenientlybe about 1.50 to the plane of the boards, and are formed into metres long, 120 metres broad and about 60 panels or partition blocks by gluing veneer millimetres thick. The layers are glued toboards on the outer faces.

According to the invention, a partition draulic' press. block of greater strength and resisting power The board made up as described is now out both for loads and weathering is obtained, in sections 6, as for lnstance at the lines A -A -.even when inferior materials are used in of Figures 2 and 3, and these sections 1). are making up the block. again placed side by side andzglued together 70 In planing and making veneer boards and to form a block, as shown in Figure 4. The

' the like, a large quantity of waste occurs sections 7) are conveniently superposed until which can only be used for packin firingor the height of the block is about .50 metres,

similar purposes. According to this invenand the gluing of the sections 6 is again cftion, said waste veneers-shavings and the like fected under high pressure. 7 are so massed together'and treated as to form The block in Figure 4 is now out in a suitvaluable building blocks suitable for partiable band saw or the like in sections indicated tions or panels. by the plane B-B in Figure 4, whereby a The invention will be more readily underboard or block is produced composed of vestood from the following description, refneers glued together and arranged in'a plane 80 I erence being had to the accompanyingdrawat right angles to the plane of the block or ings in which board, but the grain of the veneers runs per- 7 Figure 1 .is an end elevation of a board pendicular to the plane of the block or board. made up of waste-veneer glued together with The core block produced in this manner their grains running parallel, according to may be ofany desired thickness and may be 5 the first stage of the improved process. used to form panels or blocks of any desired Figure 2 is a plan view of the block or size, as for instance 1.50 metres, by placing board shown in Figure 1. the core sections side by side as shown in Figure 3 is an end elevation at right angles Figure 5 and gluing veneers thereon on 4 to that shown in Figure 1. each side. The direction of the grain in the I Figure 4 illustrates the second stage in the outer veneers is arranged at right angles to process of making blocks from the boards as v the direction of the grain in the veneer pieces shown in Figures 1 to 3." Y which constitute the core piece of the finished Figure 5 is an end'elevation of the finished block. partition block or building panel, according v In this way waste shavings and veneering 95 to this invention. can be eflectively used to produce a high qual- In carrying the invention into efiect, pieces ity partition blocker panel. It is not necesaof wasteveneers or shavings of varioussize's sary however to use Waste material, as it is as shown in Figures 1-3 are set together andevident that the veneers forming the core glued, so that no two edge joints in any plane of the block may be speciallycut and shaped,

lgether under pressure, preferably in a hyor may be cutfrom' parts of the block not' suited for ordinary veneer boards. In practice, the resulting block has proved exceed ingly strong and resistant to the effects of the Weather as well as to Warping, and formsa high quality partition block or panel.

I claim 1. A process of forming compact building blocks and panels, consisting 1n forming boards from waste veneers by placing'the saine together and joinig them in staggered relation by gluing under pressure, cutting the boards so formed into sections, placing the sections side by side and gluing them together, then cutting core sections from the block so formed and gluing veneer boards to the opposite faccs'of said cores in such a manner, that the grain of the veneer facing boards is transverse to the grain of the veneer sections of which the core is composed.

2. As an article of manufacture a compact building block or panel,-comprising Waste veneer pieces and produced by placing such pieces together and joinig them in staggered relation by gluing under pressure, cutting the boards so formed into sections, placing the sections side by side and gluing them together, then cutting core sections from the block so, formed and gluing veneer boards to the opposite faces of said cores in such aa manner, that the grain of the veneer facing boards is transverse to the grain of the veneer sect-ions of which the core is composed.

In testimony wherof I have signed my name to this specification.

ISRAEL PICK. 

